NXAMP4X4
NXAMP is far more complex than a bundled power amplifier and loudspeaker controller. Significant DSP innovations allows multiple digital sense lines to protect at the same time the amplifier and the connected speakers. First the NXAMP4x4 uses a unique dual mains cord, feeding the power supplies with nearly twice the power than most audio amplifiers today, still being extremely easy to connect to any mono or multiple phases mains. To absorb this enormous quantity of current the NXAMP4x4 reveals four independant high power full resonant power supplies working in opposite phase, thus cancelling noise and lowering EMC.
NXAMP4x4 uses advanced custom components based power amplifier design, the ultimate evolution of the Yamaha’s EEEngine technology, offering the sonic purity of conventional class AB but a heat dissipation equaling the class D. Not only the two dual-core DSPs are taking care of the amplifier protection and optimization, but they also redefine the processing standard of NEXO proprietary loudspeaker management technology to a higher sonic performance and reliability level.
With useful features such as full computerless front panel operation, on the fly independant louspeaker per output selection or load monitoring trough GPIO or Ethersound™/AES/EBU/Dante™ network for safety installation, the NXAMP4x4 is ideal for a wide variety of demanding applications.
KEY FEATURES
- Ultra flexible true four channels digital processing and amplification solution offering a perfect match to any NEXO speakers
- Among the industry’s most powerful four channels amplifiers
- Cost effective integration of command, control, protection and amplification of all NEXO speakers systems
- Lighter and requires less rack space than conventional amplifier-processor systems
- Eliminates unnecessary A/D conversion
- Optional Dante™, EtherSound™ or AES/EBU network cards
SPECIFICATIONS
| Number of channels | 4x amplifiers channels, 2 by 2 bridgeable |
| Max. output voltage (no load) | 4x 200 Volts |
| Max. output power (4 channels mode /8 Ohms load per channel) | 4x 1900 Watts |
| Max. output power (4 channels mode /4 Ohms load per channel) | 4x 3300 Watts |
| Max. output power (4 channels mode /2 Ohms load per channel) | 4x 4000 Watts |
| Max. output power (2 channels mode /8 Ohms load per channel) | 2x 6800 Watts |
| Max. output power (2 channels mode /4 Ohms load per channel) | 2x 8000 Watts |
| Power consumption (Standby) | 20 Watts |
| Power consumption (Idle) | 120 Watts |
| Frequency response | +0.5 dB from 10 Hz to 20 KHz |
| Input impedance / Max. level | 20 KΩ / +28 dBU |
| Dynamic range / TDH + N | 105 dB unweighted / Typical 0.1% on a flat setup |
| Latency | 500 us on a flat setup |
| A to D Converters | Audio and current/voltage sense lines : 24 bits @ 48 KHz |
| Processing | Two dual-core 24 bits fixed point DSP with 56 bits accumulator |
FEATURES
| Analog audio inputs | 4x balanced analogue inputs on XLR3 with a second XLR3 for link |
| Power outputs | 4x Neutrik Speakon NL-4 outputs |
| RS232 port | 1x DB-9 connector for firmware upgrade and accessories connection |
| GPIO port | 1x DB-25 connector with 5x Global Purpose Inputs and 8x Global Purpose Outputs |
| Expansion slot | For networking audio cards, 4x digital audio inputs and remote control |
| Mains sockets | 2x Neutrik Powercon NAC3 (2x 16 A) or NAC3-HC (2x 32 A) depending on model |
| Front panel buttons and knobs | On/Off Mains switch, Select Wheel, 2x Menus buttons, 4x Select and 4x Mute buttons |
| Display | 40 characters by 2 lines LCD display with LED backlight |
| Global status display | Power, Standby and Amp Protect LEDs |
| Speakers/Amp status display | Per channel, output current sensing, speaker protection and channel soft clip |
| Dimensions | 4U 19″ Rack – 457 mm (18″) Depth |
| Weight | 24.5 Kg (49 lbs) net |
| Electrical Safety Certification | cULus, CB (CE) |
| EMC Certification | CE, FCC |
| Green status | Compliant with ROHS directive |
